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निम्नांकित चित्रों में कोण A की गणना कीजिए। |
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Answer» (i) x + 2x = 180° 3x = 180° x = 60° 2x = 2 x 60° = 120° (ii) 30° + x = 90° x = 90° – 30° x = 60° (iii) x = 30° + 180° x = 210° (iv) 150° + 150° + x + x = 360° 300° + 2x = 360° 2x = 360° – 300° 2x = 60° x = 30° |
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